Telephone support and switch.



No. 767,489. PATENTBD AUG; '16,* 1904. F. R. MOBERTY.

TELEPHONE SUPPORT AND SWITCH., APPLIUMIOH HLBDDEOA, 1902.

No MODEL.

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IINTTED STATES Patented August 16,- 1904.

PATENT OFFICE.

FRANK R. MCBERTY, OF EVANSTON, ILLINOIS, ASSIGNOR TO WESTERN ELECTRICCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

TELEPHONE SUPPORT AND SWITCH..

SPECIFICATION forming part of Letters Patent No. 767,489, dated August16, 1904.

Application led December 1, 1902. Serial No. 133,524. l (No model.)

To all w/wm/ it 11m/y concern.-

Bo it known that I, FRANK R. INICBEETY, a citizen ofthe United States,residing' at Evanston, in thc county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Telephone Supports andSwitches, of which the following is a full, clear, concise, and exactdescription.

My invention relates to a combined telephone-switch andtransmitter-support, and has for its object to provide an improvedstructure which will be compact and convenient for use as a wall set.

My idea was primarily to construct a wall instrument which would beespecially adapted for use in hotelexchanges or wherever a small,compact, and efficient instrument of this character is desired.

I will describe the invention particularly by reference to theaccompanying drawings, and the features or combinations which I regardas novel will be set forth in the appended claims. n

Figure l is a side elevation of the bracket with the cover removed, thetelephone-hook being also broken away for clearness. Fig. 2 is asectional plan view on line 2 of Fig. l. Fig. 3 is a detail view of theend of the rocking shaft which carries the telephone-hook, illustrating'the actuating finger which operates the switch-contacts; and Fig. 4 is adetail sectional view on line 4 4: of Eig. l to show the stops whichlimit the rocking movement of the shaft.

The same letters of reference are used to indicate the same partswherever they are shown.

The telephone-switch lever and contactstrips are mounted on a metal diskor back plate a, which is adapted to be screwed to the wall. A metalcover a is provided for this back plate and the telephone-transmittermay be mounted on the outside of the cover. The switch-hook is formedupon a forwardly-projecting right-angled extension of a horizontalactuating-shaft b, which is mounted to rockin bearings Z2' formed bylugs projecting from the back plate a. Lugs b2 b2, carried by therocking shaft and projecting above and below thesame, serve as stopscoming against the back plate to limit the rocking movement of theshaft. The opposite end of the shaft carries a forwardly-projectingfinger c, which is adapted to actuate the switch-springs. A plate ofinsulating material e is mounted upon the back plate to the left of thecenter and below the shaft. The several switch-contact parts are mountedone above the other (suitably insulated by rubber strips) upon thisinsulating-plate and extend toward the right parallel to the rockingshaft b, the end of the main switch-spring f projecting into the path ofthe actuating-finger c, which is carried by said rocking shaft. When thereceiver is on its switch-hook, the finger c forces the spring f out ofengagement with its resting contact; but when the receiver is taken fromits hook for use the tension of spring f causes the shaft b to rotate ina direction oppositeto that caused by the weight of the receiver, thusrestoring the connection of spring f with its resting contact. of eachcontact-strip projects beyond the contact-strip next above it in thepile, so as to aiord suiiicient exposed surface to accommodate abinding-screw, to which the wires lead- The left-hand end ing into theswitch may be attached. These several wires are led in through aninsulatingbushing a2, held in a projecting lug at the bottom of the backplate, over which the cover a' is cut away to fit.

Two posts g g are shown rising from the back plate near the centerthereof to support the cover a', which is adapted to be fastened inplace thereon by screws g g passing into said posts. These screws mayalso serve to secure in place upon the outside of the cover a plate it,having projecting lugs 7L L, adapted to receive the transmitter, whichmay be pivotally fastened therein as usual. The cover spring normallyrests. The switch thus operated may control the connection of thetransmitter in the circuit.

By employingl a shaft of circular cross-section the transmission ofmotion through the shaft from the switch-hook to the switch is notaccompanied by any displacement of the shaft relative to the coverthrough which it passes. This structure is of advantage in that itpermits the cover to be made to fit the shaft closely, thus preventingthe admission of dust within the incloscd space.

Having thus described my invention, I claim-- l. rl`he combination withthe back plate, of an actuatingshaft extending horizontally across thefront face of the back plate and arranged to roch in bearings supportedthereby, said shaft having a right-angled extension on one end formed tohold a telephone-receiver, switch-contact strips mounted upon said backplate, and a finger carried by said rocking shaft at right angles tosaid telephone-receiver support in position to engage one of saidcontact-strips to move the same and change the contacts.

2. The combination with the back plate, ofa pile of contact-stripsmounted upon said back plate one above the other, a telephone-hook andan actuating-finger moved thereby, arranged to engageone of saidcontact-strips to move the same, a cover fitting over the back plate,and a push-button loosely mounted in the cover in position to registerWith one of the contact-strips of the pile, to move the same,substantially as set forth.

3. The combination with the back plate (L, of a horizontalactuating-shaft extending across said back plate and mounted to roch inbearings supported thereby, a telephone-hook extending forward at rightangles from the one end of said shaft, switch-contact strips supportedby said back plate parallel to the shaft, an actuating finger carried bysaid shaft at right angles to said telephone-hook and arranged toactuate the switch-contacts as the shaft is rocked, and a cover for saidback plate provided with lugs for supporting a tclcphone-transmitter.

4. The combination with the metal disk a forming a bach plate and havinglugs east on the front thereof, of an actuating-shaft extendinghorizontally across the front of said dish and journaled to rock in saidlugs, a telephone-hook extending forward at right angles from theleft-hand end of said shaft, an insulating-plate mounted upon the frontof the disk, contact-strips and their interposed insulating-stripsmounted in a pile upon said insulating-plate parallel to the shaft, aprojecting linger carried by the shaft arranged to actuate saidcontact-strips, a cover arranged to lit over the back plate and adaptedto support a telephone-transmitter, and a Aright-angle extension on theend of saidshaft outside of the cover adapted to hold atelephone-receiver, stops carried by said shaft for limiting themovement of the same, and means made operative in the turning of saidshaft for moving one of said contact-pieces to change the contacts.

6. In a telephone set the combination with an inclosing case, ofswitch-contact pieces mounted therein one above the other, a shaftextending' into said case and adapted to turn in bearings supported uponsaid case, a rightangle extension adapted to hold a telephonereceiver onthe end of said shaft outside the case, and means within the case madeoperative in the turning of the shaft for moving one of the saidcontact-pieces to change the contacts.

7. rlhe combination with the back plate, of an actuating-shaft extendinghorizontally across the face thereof, lugs carried by said bach plateand forming bearings for said shaft, a telephone-hook extending forwardat right angles from one end of said shaft, contact-strips supported bysaid back plate one above the other parallel to said shaft, and a fingercarried by the shaft at right angles to said telephone-hook, adapted asthe shaft is rocked to actuate said contact-strips.

8. The combination with the baclz plate, of an actuatingshaft extendinghorizontally across the face thereof, lugs carried by said back plateand forming bearings for said shaft, a telephone-hook extending forwardat right angles from one end of said shaft, an insulating-block carriedby said back plate, contact-strips mounted upon said insulatingbloclparallel to saidshaft, a finger c carried by the shaft adapted as thesame is rocked to actuate said contact-strips, a projecting lug carriedby said back plate, an insulatingbushing (t2 supgorted thereby, a coverfor said back plate cut away to fit over said bushing, and lugs carriedby said cover adapted to support a telephone-transmitter- 9. Thecombination with a metal bach plate, of a horizontal actuating-shaftextending across the face of said back plate and mounted to rock inbearings cast integrally therewith, a telephone-hook extending forwardat right angles from one end of said shaft, lugs carried on either sideof said shaft and limiting the movement thereof, an insulating-blockcarried by said back plate, a pile of contact- CSo IOO

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ling beyond the Contact-strip next above it in the pile, a binding-screwfor such exposed end of each strip, a telephone-hook, and anactuating-finger moved thereby adapted to engage one of saidcontact-strips to move the same.

In Witness whereof I hereunto subscribe my name this 11th day ofOctober, A. D. 1902.

FRANK R. MCBERTY.

Witnesses:

EDWIN H. SMYTHE, ADELL HooKETT.

